@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateX(-50px)
    }

    100% {
        opacity: 1;
        transform: none
    }
}

.bannar {
    width: 100%;
    height: 550px;
    position: relative;
    background-repeat: no-repeat;
    background-position: center;
    transition: 1.25s;
    .txt {
        width: 1200px;
        margin: 0 auto;
        padding-top: 160px;
        text-align: right;
        p {
            margin: 0;
            font-size: 48px;
            font-weight: bold;
            font-style: italic;
            color: #012658;
            animation: fadeInUp 0.75s ease;
            i {
                font-size: 36px;
            }
        }
        span {
            display: block;
            font-size: 20px;
            margin: 20px 0 40px;
            color: #333;
            line-height: 1.5;
            animation: fadeInUp 1s ease;
        }
        a {
            line-height: 36px;
            padding: 0 25px;
            color: #FFF;
            background: #ff7519;
            border-radius: 4px;
            display: inline-block;
            animation: fadeInUp 1.25s ease;
        }
    }
    ul {
        display: block;
        position: absolute;
        bottom: 25px;
        left: 50%;
        margin-left: -39px;
        li {
            width: 8px;
            height: 8px;
            background: #FFF;
            border-radius: 4px;
            float: left;
            margin: 0 3px;
            transition: 0.5s;
            &.active {
                width: 16px;
            }
        }
    }
    .prev, .next {
        position: absolute;
        top: 225px;
        background-color: rgba(204,204,204,0.25);
        width: 50px;
        height: 100px;
        transition: 0.5s;
        cursor: pointer;
        &:after {
            content: '';
            display: block;
            border-top: 2px solid #FFF;
            border-left: 2px solid #FFF;
            width: 16px;
            height: 16px;
            transition: .5s;
            margin-top: 40px;
        }
    }
    .prev {
        left: 0;
        &:after {
            margin-left: 18px;
            transform: rotate(-45deg);
        }
    }
    .next {
        right: 0;
        &:after {
            margin-left: 14px;
            transform: rotate(135deg);
        }
    }
    .prev:hover, .next:hover {
        background-color: rgba(204,204,204,0.75);
    }
}

.core {
    width: 1200px;
    margin: 0 auto;
    ul {
        &:after,
        &:before {
            content: '';
            display: block;
            clear: both;
        }
        li {
            float: left;
            width: 25%;
            height: 330px;
            padding: 80px 25px 50px;
            box-sizing: border-box;
            &:before {
                content: '';
                display: block;
                border: 1px solid #999;
                border-radius: 50%;
                transition: 0.25s;
                margin: 0 auto 20px;
                width: 130px;
                height: 130px;
                background-image: url("../../images/index/core.png");
            }
            &:nth-child(2):before {
                background-position: -130px 0;
            }
            &:nth-child(3):before {
                background-position: -260px 0;
            }
            &:nth-child(4):before {
                background-position: -390px 0;
            }
            p {
                font-size: 20px;
                color: #333;
                font-weight: bold;
                text-align: center;
            }
            &:hover:before  {
                margin: -10px auto 40px;
            }
        }
    }
}

.services {
    background-color: #3d94e3;
    width: 100%;
    height: 780px;
    background-image: url('../../images/index/services/bg.png');
    background-position: center;
    background-repeat: no-repeat;
    text-align: center;
    position: relative;
    h2 {
        font-size: 48px;
        color: #FFF;
        margin: 0;
        padding-top: 80px;
    }
    span {
        display: block;
        font-size: 60px;
        color: #FFF;
        opacity: 0.2;
        margin-top: -90px;
    }
    p {
        font-size: 18px;
        color: #FFF;
        margin-top: 20px;
    }
    .wiper {
        width: 1230px;
        margin: 60px auto 0;
        overflow: hidden;
        ul {
            white-space: nowrap;
            width: 2050px;
            transition: 0.75s ease-in-out;
            &:after,
            &:before {
                content: '';
                display: block;
                clear: both;
            }
            li {
                float: left;
                width: 380px;
                margin: 0 15px;
                background-color: #FFF;
                padding-bottom: 25px;
                text-align: left;
                img {
                    width: 100%;
                }
                h3 {
                    margin: 25px;
                    color: #ff7519;
                    font-size: 28px;
                    line-height: 1;
                }
                p {
                    padding: 0 25px;
                    color: #666;
                    font-size: 16px;
                }
                a {
                    color: #999;
                    margin-left: 25px;
                    &:hover {
                        color: #ff7519;
                    }
                }
            }
        }
    }
    .nav {
        position: absolute;
        top: 425px;
        left: 0;
        right: 0;
        width: 1400px;
        margin: 0 auto;
        li {
            width: 50px;
            height: 50px;
            transition: 0.5s;
            cursor: pointer;
            border: 2px solid #FFF;
            border-radius: 50%;
            &:before,
            &:after {
                content: '';
                display: block;
                border: 10px solid transparent;
                width: 5px;
                transition: 0.5s;
            }
            &.prev {
                float: left;
                &:before {
                    border-right-color: #FFF;
                    margin: 15px 0 0 4px;
                }
                &:after {
                    border-right-color: #3d94e3;
                    margin: -20px 0 0 7px;
                }
            }
            &.next {
                float: right;
                &:before {
                    border-left-color: #FFF ;
                    margin: 15px 0 0 22px;
                }
                &:after {
                    border-left-color: #3d94e3;
                    margin: -20px 0 0 19px;
                }
            }
            &:hover {
                background-color: #326593;
                &.prev:after {
                    border-right-color: #326593;
                }
                &.next:after {
                    border-left-color: #326593;
                }
            }
        }
    }
}

.cooperation {
    width: 100%;
    height: 540px;
    background: url('../../images/index/cooperation/bg.jpg') center no-repeat;
    text-align: center;
    h2 {
        font-size: 48px;
        color: #666;
        margin: 0;
        padding-top: 80px;
    }
    span {
        display: block;
        font-size: 60px;
        color: #666;
        opacity: 0.2;
        margin-top: -90px;
    }
    ul {
        width: 1220px;
        margin: 60px auto 0;
        &:after,
        &:before {
            content: '';
            display: block;
            clear: both;
        }
        li {
            float: left;
            width: 224px;
            margin: 0 10px 35px;
            position: relative;
            img {
                width: 100%;
                box-shadow: 0px 0px 5px #999;
                position: relative;
                z-index: 1;
            }
            &:before,
            &:after {
                content: '';
                display: block;
                width: 0;
                height: 0;
                background-color: #3d94e3;
                position: absolute;
                transition: 0.25s;
            }
            &:before {
                top: -3px;
                left: -3px;
            }
            &:after {
                right: -3px;
                bottom: -3px;
            }
            &:hover:before,
            &:hover:after {
                width: 230px;
                height: 113px;
            }
        }
    }
}